SAN FRANCISCO (AP) - An uninvited guest at the NFL's annual pre-Super Bowl news conference about health and safety, Chris Nowinski stood nearby and listened Thursday as one of the league's chief advisers about concussions declined to acknowledge a link between football and the brain disease called CTE.

WASHINGTON (AP) - A basketball enthusiast, President Barack Obama applauded the Golden State Warriors on Thursday and marveled at how they are revolutionizing professional basketball with what he described as a "small-ball nuclear lineup" that specializes in great shooting and passing.

SAN FRANCISCO (AP) - The Oakland Raiders and Jacksonville Jaguars are the only two NFL teams below the 89 percent cash spending required by next year, and they are significantly under the minimum, the players' union said Thursday.

BOSTON (AP) - Former Oakland Raiders quarterback Ken Stabler, the late NFL MVP and Super Bowl winner who is a finalist for the Pro Football Hall of Fame, has been diagnosed with the brain disease CTE, Boston University researchers said Wednesday.

SAN JOSE (AP) - Vernon Davis got to sleep at home for a night in the Bay Area, stay in the same hotel where he lived during 49ers training camp last summer, and the equipment staff even promised him his old locker at Levi's Stadium this weekend.

STANFORD (AP) - Erica McCall had her 12th double-double of the season, and Karlie Samuelson hit three 3-pointers and finished with 15 points to help the No. 15 Stanford women beat Cal 53-46 Tuesday night for its ninth-straight home victory.